JP2007316000A - Vehicular annunciator apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an annunciator apparatus, capable of reporting that there is the possibility of the temperature in the inside of a vehicle becoming high during parking to the user. <P>SOLUTION: The apparatus predicts the shadow region that becomes a shadow due to buildings around own vehicle position during the parking (S104), and reports, when it determines that the parking position of own vehicle will be outside from the shadow region during the parking (determined as being "NO" in S108), that there is the possibility of the temperature in the inside of a vehicle becoming high (S114). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle notification device that notifies that there is a possibility that the inside of a vehicle may become hot during parking.

  Conventionally, various devices for detecting a situation around a vehicle or in a vehicle and notifying a user have been proposed. As such a device, there is a device that predicts the weather and temperature of the arrival place, and preferentially guides the covered parking lot when the predicted weather or temperature of the arrival place is rainy or extremely hot ( For example, see Patent Document 1).

  In addition, there is a device that monitors a state in a vehicle and notifies a vehicle owner with a wireless terminal of the vehicle when an abnormal situation is detected in a parked vehicle (see, for example, Patent Document 2).

  In addition, there is an apparatus in which a shade cost is assigned to each road data (link), and a route can be searched by using the shade cost so as to avoid direct sunlight as much as possible (for example, see Patent Document 3). ).

Also, based on the position data (latitude, longitude, altitude) and date, it is determined whether or not the road surface is frozen by referring to freezing data indicating whether or not the road surface is frozen, and it is determined that the road surface is frozen. There is a device for notifying when this occurs (see, for example, Patent Document 4).
JP 2004-325181 A JP 2004-287916 A JP 2004-226199 A Japanese Patent Laid-Open No. 11-014377

  However, the device described in Patent Document 1 guides an appropriate parking lot according to the weather or temperature of the arrival place when the vehicle arrives at the arrival place. It cannot be notified that the parking position is sunny and the interior of the vehicle is hot.

  Regarding the devices described in Patent Documents 2 to 4, as in Patent Document 1, it cannot be notified that the parking position of the vehicle becomes sunny and the interior temperature of the vehicle becomes high.

  The present invention has been made in view of the above points, and an object of the present invention is to enable a user to be notified that there is a possibility that the interior of the vehicle may become hot during parking.

  The first feature of the present invention is that a shaded area predicting means for predicting a shaded area that is shaded by a building around the position of the own vehicle during parking, and a shaded area in which the position of the own vehicle during parking is predicted by the shaded area predicting means. Determining means for determining whether or not the vehicle is deviated from the vehicle, and notification means for notifying that the interior of the vehicle may become hot if the determination means determines that the parking position of the vehicle is out of the shaded area during parking. It is that it was equipped with.

  In such a configuration, when a shaded area that is shaded by a building around the position of the vehicle during parking is predicted, and it is determined that the parking position of the vehicle is out of the shaded area during parking, the interior of the vehicle becomes hot. Since it is notified that there is a possibility, it is possible to notify the user that the inside of the vehicle may become hot during parking.

  The second feature of the present invention is that the vehicle position detection means for detecting the latitude and longitude of the vehicle, and the information acquisition means for acquiring the height of the building from a map data storage medium storing the height of the building. And the shade region prediction means specifies the altitude of the sun and the azimuth angle of the sun from the latitude, longitude and date of the vehicle detected by the vehicle position detection means, and through the information acquisition means Obtain the height of the building around the vehicle position, and predict the shaded area that will be shaded by the building around the vehicle position during parking from the altitude of the sun, the azimuth angle of the sun, and the height of the building around the vehicle position That is.

  As described above, the shade region prediction means specifies the solar altitude and the azimuth angle of the sun from the latitude, longitude, and month / day time of the own vehicle detected by the own vehicle position detection means, and automatically uses the information acquisition means. Obtain the height of the building around the vehicle position, and predict the shaded area that will be shaded by the building around the vehicle position during parking from the altitude of the sun, the azimuth angle of the sun, and the height of the building around the vehicle position Can do.

  In addition, a third feature of the present invention is provided with a parking time specifying unit that specifies a parking time in accordance with a user operation, and the shaded region predicting unit is configured such that the parking time specified by the parking time specifying unit from the parking start time. It is to predict a shaded area that is shaded by buildings around the vehicle position until the vehicle passes.

  For example, when predicting a shaded area using a predetermined fixed value as a parking time, there may be a situation in which the shaded area cannot be accurately predicted because the actual fixed parking time differs from the predetermined fixed value. In such a configuration, the parking time is specified in accordance with the user's operation, and the shaded area until the parking time elapses is predicted, so that the shaded area can be predicted more accurately.

  In addition, a fourth feature of the present invention is provided with a determination unit that determines whether a building exists within a predetermined range based on the vehicle position during parking, and the shaded region prediction unit includes a determination When it is determined by the means that there is a building within the range, a shaded area that is shaded by a building existing within the predetermined range is predicted.

  In such a configuration, when it is determined that a building exists within a predetermined range based on the vehicle position during parking, a shaded area that is shaded by a building existing within the predetermined range is displayed. Predict. That is, when there is no building around the vehicle position, the process for predicting the shaded area is not performed, so that the load due to the process for predicting the shaded area can be reduced.

  FIG. 1 shows the configuration of a vehicle alarm device according to an embodiment of the present invention. The vehicle notification device in the present embodiment is configured by a car navigation device 1.

  The car navigation device 1 includes a position detector 10, a map data input device 15, an operation switch group 16, an external memory 18, a display device 19, a transceiver 20, a voice controller 21, a speaker 22, a voice recognition device 23, a microphone 24, and a remote controller. A sensor 25 and a control device 17 to which these devices are connected are provided.

  The position detector 10 has sensors such as a well-known geomagnetic sensor 11, a gyroscope 12, a distance sensor 13 and a GPS receiver 14, and specifies the current position based on the characteristics of each of these sensors. Is output to the control device 17.

  The map data input device 15 is a so-called map matching data or map data for improving the accuracy of position detection stored in the map data storage medium from a map data storage medium (not shown) in which the map data is stored. And various data including landmark data. As a map data storage medium, a CD-ROM or a DVD-ROM is generally used because of the amount of data, but a memory card, HDD, or the like may be used.

  In addition, the map data storage medium in the present embodiment stores the height of the building along with the position (latitude, longitude) of the building in each place.

  The operation switch group 16 includes a touch switch provided over the display of the display device 19, a mechanical switch provided around the display of the display device 19, and the like, and outputs a signal corresponding to a user operation.

  The external memory 18 is a writable mass storage device such as an HDD. The external memory 18 has applications such as storing a large amount of data and data that should not be erased even when the power is turned off, and copying frequently used data from the map data input device 15 for use. The external memory 18 may be a removable memory having a relatively small storage capacity.

  The display device 19 has a display capable of full color display such as liquid crystal and organic EL, and displays a video corresponding to the video signal input from the control device 17 on the display.

  The transceiver 20 is a device for transmitting / receiving data to / from the VICS center 5. The transceiver unit 12 receives traffic information and the like from the VICS center 5 and transmits vehicle information and user information to the VICS center 5.

  The speech recognition device 23 performs speech recognition by collating speech signals input via the microphone 24 with lexical data (comparison target pattern) in a recognition dictionary (not shown) stored therein, and performs speech recognition. Are input to the voice controller 21.

  The voice controller 21 outputs a recognition result of the voice recognition device 23 to the control device 17 and outputs a voice signal input from the control device 17 to the speaker 22. In addition, the audio controller 21 causes the speaker 22 to output a sound corresponding to an audio signal input from the microphone 24 (talk output).

  The microphone 24 is for inputting a voice signal corresponding to the voice uttered by the user to the voice recognition device 23.

  The remote control sensor 25 outputs a signal received from the remote control 25 a that transmits a radio signal by infrared rays or the like to the control circuit 24 based on a user operation.

  The control device 17 is configured as a computer including a CPU, ROM, RAM, I / O, and the like. The CPU of the control device 17 executes various processes in accordance with programs stored in the ROM. The processing executed by the CPU of the control device 17 includes a map display process for displaying a map around the vehicle position, a menu display selection process for displaying a menu, a destination setting process for setting a destination, and a guide route to the destination. A route search process for searching the vehicle, an arrival time calculation process for calculating the arrival time at the destination, a vehicle position detection process for detecting the vehicle position (latitude, longitude) based on a signal input from the position detector 10; There is a volume adjustment process for adjusting the volume.

  Further, the control device 17 has a timer for managing the current time (current date / time).

  In addition, the control device 17 according to the present embodiment is a shaded area that is shaded by the buildings around the own vehicle position from the height of the building around the own vehicle position and the sun position (sun altitude and sun azimuth). And determining whether or not the vehicle position is not in the shaded area during parking, and determining that the vehicle position is not in the shaded area during parking by this shade determination process, A process for notifying that there is a possibility of high temperature is performed.

  The altitude of the sun and the azimuth angle of the sun change according to the latitude, longitude, and month / day time, but the altitude and azimuth of the sun at any point in time can be found in the calendar section of the science chronology, for example. In general, it is possible to calculate the local stellar time, celestial longitude, time angle, and visual declination from the latitude, longitude, and month / day time using the three values derived from the spherical triangle. Are known.

  The control device 17 in the present embodiment specifies the solar altitude β and the sun azimuth α at the vehicle position based on the vehicle position (latitude, longitude) and the date and time detected by the vehicle position detection process. The shaded area by the building is calculated using the solar altitude β and the azimuth angle α of the sun.

  Next, calculation of the shaded area will be described with reference to FIGS. FIG. 2 shows the positional relationship between the sun 4 and the shadow of the building 3 when the building 3 is viewed from the side. FIG. 3 shows the shadow of the sun 4 and the building 3 when the building 3 is viewed from the top. This shows the positional relationship.

  The altitude (solar altitude) β of the sun 4 refers to an angle formed by the sun 4 and the horizontal plane with the horizontal plane at the current position as a reference within a vertical plane passing through the current position and the sun. Also, the azimuth angle (sun azimuth) α of the sun 4 is based on the north direction of the meridian passing through the current position at the current position, and the direction of the line where the vertical plane passing through the sun intersects the horizontal plane at the observation point. The horizontal angle.

  As shown in FIG. 2, if the height of the building 3 is H and the altitude of the sun 4 is β, the shadow length L by the building 3 is expressed as L = H / tan β. The height H of the building 3 can be acquired from the map data storage medium. In addition, as shown in FIG. 3, the shade direction by the building 3 can be specified using the azimuth angle α of the sun 4.

  In this way, the control device 17 calculates the shaded area by the building 3 from the shadow length L by the building 3 and the shadow direction.

  Next, processing of the control device 17 will be described with reference to FIG. The car navigation device 1 is in an operating state when the ignition switch is turned on in response to a user operation, and the control device 17 performs a map display process, a vehicle position detection process, and the like. In addition, the control device 17 performs a map scale change process, a menu display selection process, a destination setting process, a route search process for searching for a guide route to the destination, a volume adjustment process, and the like according to a user operation.

  In addition, even when the ignition switch is turned off, the car navigation device 1 continues to operate with the power supplied from the battery, and when the process shown in FIG.

  When the ignition switch is turned off in response to a user operation, the control device 17 starts the process shown in FIG.

  First, it is determined whether there is a building within a predetermined range (S100). Specifically, referring to the map data storage medium, as shown in FIG. 5, a range of radius R (for example, a radius of 100 meters) centering on the vehicle position detected by the vehicle position detection process (target) It is determined whether there is a building in (region).

  Here, when there is a building in the range of the radius R centering on the own vehicle position, the determination in S100 is YES, and then the parking time is acquired (S102). Specifically, a screen that prompts input of the parking time is displayed on the display of the display device 19, and the user is requested to input the parking time.

  Next, the current time is substituted into the variable Time (S104). Specifically, the current time (current date / time) is recognized by a timer, and the current date / time is set in the variable Time.

  Next, the shade area at the current time is calculated (S106). Specifically, as described above, the sun altitude β and the sun azimuth angle α at the current time (current date and time) of the vehicle position are specified, and the sun altitude β and the sun azimuth angle α Is used to calculate the shaded areas of all buildings existing within the radius R centered on the vehicle position.

  Next, it is determined whether or not the vehicle position is in the shaded area (S108). Specifically, it is determined whether or not the vehicle position is in the shaded area based on whether or not the vehicle position is included in the shaded area at the current time (current month / day / time) calculated in S106. To do.

  If the vehicle position is in the shaded area, the determination in S108 is YES, and then the sampling time is added to the variable Time (S110). The sampling time here is a time obtained by dividing the parking time by an arbitrary value N. For example, if the parking time is 5 hours and the arbitrary value N is 30, the sampling time is 10 minutes. Note that the shaded region can be calculated more accurately as the arbitrary value N is increased.

  Next, it is determined whether or not the variable Time is smaller than a value obtained by adding the parking time to the current time (S112).

  If the variable Time is smaller than the value obtained by adding the parking time to the current time, the determination in S110 is YES, and the process returns to S106. That is, in S106, the shaded area at the time when the sampling time is added to the variable Time is predicted, and in S108, it is determined whether or not the vehicle position is in the shaded area at the time when the sampling time is added to the variable Time. .

  Here, if the vehicle position is in the shaded area, the determination in S108 is YES, and further, the sampling time is added to the variable Time, and until the variable Time becomes equal to or greater than the value obtained by adding the parking time to the current time, S106 to The process of S112 is repeated. In this manner, a shaded area that is shaded by a building around the own vehicle position during parking is predicted, and it is determined whether or not the own vehicle position is no longer a shaded area during parking.

  FIG. 6 shows a shaded area by the building 3. In this figure, the shaded area by the building 3 at 7:00 (area indicated by a one-dot chain line in the figure) E0 and the shaded area by the building 3 at 18:00 (area indicated by a dotted line in the figure) E1 It is shown.

  When the vehicle is parked from 7:00 to 18:00, if the vehicle is parked at the parking position A on the road, the parking position is a shaded area at 7:00 but deviates from the shaded area during parking. Therefore, during the process of S106 to S112 is repeated, it is determined NO in S108, and it is notified that the inside of the vehicle becomes hot during parking (S114). Specifically, a message indicating that the inside of the vehicle becomes hot during parking is displayed on the display of the display device 19, this processing is terminated, and the car navigation device 1 is stopped.

  Thus, when parking at a position outside the shaded area during parking by the building 3, it is notified that the interior of the vehicle becomes hot during parking, and the car navigation device 1 is stopped.

  In addition, if the vehicle is parked at the parking position B in FIG. 6, the parking position is always in the shaded area by the building 3 from 7:00 to 18:00, so that the vehicle position is out of the shaded area during parking. There is no.

  Therefore, even if the processing of S106 to S112 is repeated, if the variable Time is equal to or greater than the value obtained by adding the parking time to the current time without being determined as NO in S108, the determination in S112 is NO and this processing ends. To do.

  As described above, when the building 3 is parked at a position that is always in the shaded area during parking, the car navigation device 1 is stopped without being notified that the inside of the vehicle becomes hot during parking.

  If there is no building in the radius R range (target region) centered on the vehicle position, the determination in S100 is NO and the process proceeds to S114. That is, when there is no building in the range of the radius R centering on the vehicle position in this way, it is notified that the interior of the vehicle becomes hot during parking without performing calculation of the shaded area.

  According to the configuration described above, when a shaded area that is shaded by a building around the position of the vehicle during parking is predicted, and it is determined that the parking position of the vehicle is out of the shaded area during parking, the interior of the vehicle becomes hot. Therefore, it is possible to notify the user that the inside of the vehicle may become hot during parking.

  In addition, the parking time is specified according to the user's operation because the parking time is specified according to the user's operation and the shaded area that is shaded by the buildings around the vehicle position until the parking time elapses is predicted. The shaded area at can be accurately predicted.

  In addition, when it is determined that the building exists within a predetermined range based on the vehicle position during parking, a process for predicting a shaded area is performed. That is, when there is no building around the vehicle position, the process for predicting the shaded area is not performed, so that the load due to the process for predicting the shaded area can be reduced.

  In addition, this invention is not limited to the said embodiment, Based on the meaning of this invention, it can implement with a various form.

  In the above-described embodiment, an example in which the vehicle notification device is configured by the car navigation device has been described. However, vehicle notification using a device other than the car navigation device, for example, a portable navigation device, a personal digital assistant (PDA), or the like. An apparatus may be configured.

  Moreover, in the said embodiment, although the screen which prompts the input of parking time in S102 was displayed on the display of the display apparatus 19, and the parking time was acquired via the operation switch group 16, the parking time was previously shown, for example. A predetermined fixed value may be stored in the external memory 18, and the fixed value stored in the external memory 18 may be acquired as the parking time.

In the above embodiment, the radius R around the vehicle position is the center in S100.
Although the example which determines whether there is a building in the range (target area | region) of the radius R centering on the own vehicle position was shown, it is not limited to the range of the radius R centering on the own vehicle position For example, it may be determined whether there is a building in a polygon centered on the vehicle position.

  In the above-described embodiment, an example in which a message indicating that the inside of the vehicle becomes hot during parking is displayed on the display of the display device 19 in S114. For example, a warning sound may be output from the speaker 22. In addition, both the display on the display device 19 and the sound output from the speaker 22 may notify the user that the inside of the vehicle is hot during parking.

  Moreover, in the said embodiment, although the example which displays the message to the effect that the inside of a vehicle becomes high temperature during parking was shown on the display of the display device 19 in S114, for example, the window control device (for example, further controlling the window of the vehicle) Control to automatically open the window of the vehicle by outputting a signal to (not shown) or to open the outside air intake port by outputting a signal to the vehicle air conditioner (not shown) Also good.

  Moreover, in the said embodiment, when the ignition switch turned off according to a user's operation, the control apparatus 17 showed the example which implements the process shown in FIG. 4, However For example, a destination is set according to a user's operation. When setting and calculating the arrival time at the destination, the process shown in FIG. 4 may be performed with the position (latitude, route) of the destination as the parking position.

  The correspondence relationship between the configuration of the above embodiment and the configuration of the claims will be described. S106 corresponds to a shaded region prediction unit, S108 corresponds to a determination unit, S114 corresponds to a notification unit, and position detection. The vehicle position detection process for detecting the vehicle position (latitude and longitude) based on the signal input from the device 10 corresponds to the vehicle position detection means, the map data input device 15 corresponds to the information acquisition means, and S102 Corresponds to parking time specifying means, and S100 corresponds to building range determining means.

It is a figure which shows the structure of the alerting | reporting apparatus for vehicles which concerns on one Embodiment of this invention. It is a figure for demonstrating calculation of a shade area | region. It is a figure for demonstrating calculation of a shade area | region. It is a flowchart which shows the process of a control apparatus. There is a building within the radius R centered on the vehicle position It is a figure for demonstrating determination of whether a building exists in the range on the basis of the own vehicle position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Car navigation apparatus, 10 ... Position detector, 11 ... Geomagnetic sensor,
12 ... Gyroscope, 13 ... Distance sensor, 14 ... GPS receiver 14,
15 ... Map data input device, 16 ... Operation switch group, 17 ... Control device,
18 ... External memory, 19 ... Display device, 20 ... Transceiver, 21 ... Audio controller,
22 ... Speaker, 23 ... Voice recognition device, 24 ... Microphone, 25 ... Remote control sensor,
25a: Remote control.

Claims (4)

A shaded area predicting means for predicting a shaded area that is shaded by buildings around the vehicle position during parking;
Determining means for determining whether or not the vehicle position during parking deviates from the shaded area predicted by the shaded area predicting means;
And a notifying means for notifying that the inside of the vehicle may become hot when it is determined by the determining means that the parking position of the host vehicle is out of the shaded area during parking. Vehicle notification device. Own vehicle position detecting means for detecting the latitude and longitude of the own vehicle;
Information acquisition means for acquiring the height of the building from a map data storage medium in which the height of the building is stored,
The shade area predicting means specifies the altitude of the sun and the azimuth angle of the sun from the latitude, longitude, and month / day time of the own vehicle detected by the own vehicle position detecting means, and the own vehicle through the information acquisition means. The height of the building around the position is acquired, and the shaded area that is shaded by the building around the own vehicle position during parking is predicted from the altitude of the sun, the azimuth angle of the sun, and the height of the building around the own vehicle position. The vehicle notification device according to claim 1, wherein: A parking time specifying means for specifying the parking time according to a user operation,
The shaded area predicting means predicts a shaded area that is shaded by a building around the vehicle position from the parking start time until the parking time specified by the parking time specifying means elapses. The vehicle alarm device according to 1 or 2. A building range judging means for judging whether or not a building exists within a predetermined range based on the vehicle position during parking;
The shade area prediction means predicts a shade area that is shaded by a building existing within the predetermined range when the building range determination means determines that a building exists within the predetermined range. The vehicular alarm device according to any one of claims 1 to 3.

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